Petalophyllum, or petalwort, is a genus of liverworts in the order Fossombroniales. The plants are small, reaching lengths of up to about 15 mm (0.6 in), and thallose; that is, the plant is not differentiated into root, stem, and leaf. The thallus consists of a midrib flanked by two wings that bear leaf-like lamellae on their dorsal surface. The ventral surface bears rhizoids and two rows of small scales.
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rdfs:label
| - Petalophyllum (es)
- Petalophyllum (en)
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| - Petalophyllum es un género de hepáticas perteneciente a la familia Fossombroniaceae. Comprende 9 especies descritas y de estas, solo 4 aceptadas. (es)
- Petalophyllum, or petalwort, is a genus of liverworts in the order Fossombroniales. The plants are small, reaching lengths of up to about 15 mm (0.6 in), and thallose; that is, the plant is not differentiated into root, stem, and leaf. The thallus consists of a midrib flanked by two wings that bear leaf-like lamellae on their dorsal surface. The ventral surface bears rhizoids and two rows of small scales. (en)
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| - Nees & Gottsche ex Lehmann (en)
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subdivision
| - *Petalophyllum americanum (C.H. Ford & Crandall-Stotler)
*Petalophyllum hodgsoniae (C.H. Ford & Crandall-Stotler)
*Petalophyllum indicum (Kashyap)
*Petalophyllum preissii (Lehmann)
*Petalophyllum ralfsii ( Nees & Gottsche ex Lehmann) (en)
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| - Petalophyllum es un género de hepáticas perteneciente a la familia Fossombroniaceae. Comprende 9 especies descritas y de estas, solo 4 aceptadas. (es)
- Petalophyllum, or petalwort, is a genus of liverworts in the order Fossombroniales. The plants are small, reaching lengths of up to about 15 mm (0.6 in), and thallose; that is, the plant is not differentiated into root, stem, and leaf. The thallus consists of a midrib flanked by two wings that bear leaf-like lamellae on their dorsal surface. The ventral surface bears rhizoids and two rows of small scales. Petalophyllum is dioicous. The gametangia are individually subtended by extensions of the dorsal lamellae. Antheridia occur in rows or clusters near the apex of the thallus. Archegonia are clustered and surrounded by a pesudoperianth. Asexual reproduction occurs via apical tubers. (en)
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